Which of the following conditions must be satisfied at for to be a critical number of…

MATHEMATICS · Single correct · AP · Calculus AB · Analytical Applications of Differentiation · Analytical Applications of Differentiation

Problem

Which of the following conditions must be satisfied at

x=c

for

c

to be a critical number of a function

f

that is differentiable at

x=c

? (a)

f(c)=0

(b)

f''(c)=0

(c)

f'(c)=0

(d)

f'(c)>0